[PATCH 2/4] drm/i915/dp: Use revision field of AS SDP data structure

[Ankit Nautiyal <ankit.k.nautiyal@intel.com>]

Use the revision field of struct drm_dp_as_sdp instead of current
hardcoding for the AS SDP revisions.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 3 ++-
 drivers/gpu/drm/i915/display/intel_dp.c      | 7 +++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index d5cf1476c7b9..ca06a9d990f7 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4881,7 +4881,8 @@ static bool
 intel_compare_dp_as_sdp(const struct drm_dp_as_sdp *a,
 			const struct drm_dp_as_sdp *b)
 {
-	return a->vtotal == b->vtotal &&
+	return a->revision == b->revision &&
+		a->vtotal == b->vtotal &&
 		a->target_rr == b->target_rr &&
 		a->duration_incr_ms == b->duration_incr_ms &&
 		a->duration_decr_ms == b->duration_decr_ms &&
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index c9ec27e9e124..fa3b0a1b6bc1 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -3199,6 +3199,7 @@ static void intel_dp_compute_as_sdp(struct intel_dp *intel_dp,
 	as_sdp->sdp_type = DP_SDP_ADAPTIVE_SYNC;
 	as_sdp->length = 0x9;
 	as_sdp->duration_incr_ms = 0;
+	as_sdp->revision = 0x2;
 	as_sdp->vtotal = intel_vrr_vmin_vtotal(crtc_state);
 
 	if (crtc_state->cmrr.enable) {
@@ -5175,7 +5176,7 @@ static ssize_t intel_dp_as_sdp_pack(const struct drm_dp_as_sdp *as_sdp,
 	/* Prepare AS (Adaptive Sync) SDP Header */
 	sdp->sdp_header.HB0 = 0;
 	sdp->sdp_header.HB1 = as_sdp->sdp_type;
-	sdp->sdp_header.HB2 = 0x02;
+	sdp->sdp_header.HB2 = as_sdp->revision;
 	sdp->sdp_header.HB3 = as_sdp->length;
 
 	/* Fill AS (Adaptive Sync) SDP Payload */
@@ -5362,13 +5363,11 @@ int intel_dp_as_sdp_unpack(struct drm_dp_as_sdp *as_sdp,
 	if (sdp->sdp_header.HB1 != DP_SDP_ADAPTIVE_SYNC)
 		return -EINVAL;
 
-	if (sdp->sdp_header.HB2 != 0x02)
-		return -EINVAL;
-
 	if ((sdp->sdp_header.HB3 & 0x3F) != 9)
 		return -EINVAL;
 
 	as_sdp->length = sdp->sdp_header.HB3 & DP_AS_SDP_LENGTH_MASK;
+	as_sdp->revision = sdp->sdp_header.HB2;
 	as_sdp->mode = sdp->db[0] & DP_AS_SDP_OPERATION_MODE_MASK;
 	as_sdp->vtotal = (sdp->db[2] << 8) | sdp->db[1];
 	as_sdp->target_rr = ((sdp->db[4] & 0x3) << 8) | sdp->db[3];
-- 
2.45.2